A velocity field is defined by (a) Three paths C₁, C₂ and C3 are shown below, where C₁ is a circular are with its centre at the origin, x is constant along C₂ and y is constant along C3. -2 V(x, y) = - [x-y] 2x у 3 0 C₂ Figure Q3 C₂ 2 Evaluate directly the line integral of V(x, y) along the path C₁. (12 marks)

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